bookatrainer.dk DNS records

🖥️ Nameservers2 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
isabel.ns.cloudflare.com	108.162.194.104 162.159.38.104 172.64.34.104 2606:4700:50::a29f:2668 2803:f800:50::6ca2:c268 2a06:98c1:50::ac40:2268	isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jacob.ns.cloudflare.com	108.162.195.162 162.159.44.162 172.64.35.162 2606:4700:58::a29f:2ca2 2803:f800:50::6ca2:c3a2 2a06:98c1:50::ac40:23a2	jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.75.200	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.181.83	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S
20	300s	mx2.dandomain.dk	46.36.209.11	mx2.dandomain.dk	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.dandomain.dk → 212.237.249.98
🔶 Autoconfig	autoconfig-mf.dandomain.dk → 212.237.249.54

🔷 AAAA Records (IPv6)2 records 28ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:b553	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:4bc8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.75.200,172.67.181.83 ech=AEX+DQBBOAAgACCoHv6+0vAqMmPAoHuYGDp/hbTGrX5q1kGCAuTjYfMZcwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:b553,2606:4700:3035::6815:4bc8

📝 TXT Records1 records 147ms

TXT Record
v=spf1 include:spf.dandomain.dk -all

✉️ SPF

Policy	Record (bookatrainer.dk)
-all (hard fail)	v=spf1 include:spf.dandomain.dk -all

📨 DMARC

Policy	Record (_dmarc.bookatrainer.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC116ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2411352138
Primary NS (MNAME)	isabel.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

32ms

MX

49ms

AAAA

28ms

TXT

147ms

CAA

37ms

HTTPS

32ms

TLSA

64ms

SOA

0ms

MTA-STS

47ms

DNSSEC

116ms

SRV

68ms

Total

648ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 11:16:15	648ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-07 11:30:12	17254ms	2 NS 2 A 2 MX	❓ Unknown	View
2026-07-19 03:49:03	10204ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-26 04:33:19	1790ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-23 18:44:51	852ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-20 07:34:00	1064ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-16 15:55:54	470ms	2 NS 2 A 2 MX	🔓 Insecure	View